Which element is typically included in foundation drawings?

Foundation drawings are crucial in the architectural design and construction process as they provide essential information about the base upon which a structure will be built. By including footings and slab details, these drawings ensure that the foundation is adequately designed to support the weight of the building and comply with local building codes and regulations. Footing details indicate the depth and width necessary to prevent settling, while slab details illustrate the thickness, reinforcements, and any drainage considerations.

The other areas mentioned, such as landscaping features, interior room layouts, and roofing specifications, are typically represented in different sets of drawings. Landscaping features relate to external planning, interior room layouts focus on the organization of spaces within the building, and roofing specifications address the uppermost elements of the structure. Therefore, while all are essential for the complete understanding of a construction project, footings and slab details are specifically integral to foundation drawings, making them the appropriate choice in this context.